100211211100 has 288 divisors, whose sum is σ = 293638205952. Its totient is φ = 28667520000.

The previous prime is 100211211053. The next prime is 100211211119. The reversal of 100211211100 is 1112112001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18115335 + ... + 18120865.

It is an arithmetic number, because the mean of its divisors is an integer number (1019577104).

Almost surely, 2^100211211100 is an apocalyptic number.

100211211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100211211100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146819102976).

100211211100 is an abundant number, since it is smaller than the sum of its proper divisors (193426994852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100211211100 is a wasteful number, since it uses less digits than its factorization.

100211211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100211211100 its reverse (1112112001), we get a palindrome (101323323101).

Subtracting from 100211211100 its reverse (1112112001), we obtain a palindrome (99099099099).

The spelling of 100211211100 in words is "one hundred billion, two hundred eleven million, two hundred eleven thousand, one hundred".